And I don't know why, but since time immemorial that is the way computer scientists have drawn trees.

叶子是在最下面的，我不知道为什么,但从记事以来他们就是这么画树的,这也许就是为什么我们。

麻省理工公开课 - 计算机科学及编程导论课程节选

But, since that time, they've cleaned it up a lot.

但从那以后，他们大力整顿了这个地方。

哥伦布的故事 - SpeakingMax英语口语达人

People never thought of insurance as the same as a bank, but since this is relatively recently-- that was only nine years ago--at this time, it means that we are now seeing an expansion of our banking system in the U.S.

人们从来不认为保险和银行是一回事,但是从那法案之后它们就是差不多的了,这只不过是九年前的法案,但是现在,这意味着在美国,银行系统得到了扩张

耶鲁公开课 - 金融市场课程节选